The appointment ends months of speculation that Mr Liddiment would take the position, in effect replacing Marcus Plantin, the outgoing network director.
Mr Liddiment, who is to start the new job at the same time as Mr Eyre at the end of September, said last night: "My job is to make sure we pick the right shows and schedule them as effectively as possible." He and Mr Eyre are to preside over an increasingly centralised ITV, which in recent months has seen rapid consolidation into the hands of the three players - Granada Group, Carlton Communications and United News & Media.
Mr Liddiment has been in his present role at Granada since last year. Previously, he has been deputy managing director of LWT and head of the BBC's entertainment group. At Granada he was executive producer of Coronation Street for five years.